According to the official imx6solox development board, I designed a similar development board,the PMIC MMPF0200F6AEP can be normal sometimes at the first time i power up the board , the led which controlled by VGEN3_2V8 is always blinking .the output voltage of MMPF0200 is not normal.but sometimes the PMIC outputs are all normal ,the led which controlled by VGEN3_2V8 is lighted nomally,then i measure the output voltage of MMPF0200 ,and find that the output are all normal.can you tell me why ?
Hi,
When you mention about the LED controlled by VGEN3_2V8, I’m assuming that you are referring to the PMIC-ON LED (D24) from the imx6solox Sabre Light, correct?
If this LED is blinking, then it means that the PMIC does not turn on properly, which makes sense that when you reset the system, it corrects the problem sometimes.
I have seen similar power-up issues when there is a camera, HDMI, LCD, VGA or similar video interface connected, typically this error is solved by first connecting the power connector and power-on the board and then connecting the video interfaces connectors.
Have a great day,
Jose
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